2123430030 has 24 divisors (see below), whose sum is σ = 5520918312. Its totient is φ = 566247984.

The previous prime is 2123430011. The next prime is 2123430053. The reversal of 2123430030 is 300343212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2123429985 and 2123430012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11796744 + ... + 11796923.

It is an arithmetic number, because the mean of its divisors is an integer number (230038263).

Almost surely, 2^2123430030 is an apocalyptic number.

2123430030 is an abundant number, since it is smaller than the sum of its proper divisors (3397488282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2123430030 is a wasteful number, since it uses less digits than its factorization.

2123430030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23593680 (or 23593677 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2123430030 is about 46080.6904245151. The cubic root of 2123430030 is about 1285.3241028179.

Adding to 2123430030 its reverse (300343212), we get a palindrome (2423773242).

The spelling of 2123430030 in words is "two billion, one hundred twenty-three million, four hundred thirty thousand, thirty".